131254477 has 2 divisors, whose sum is σ = 131254478. Its totient is φ = 131254476.

The previous prime is 131254427. The next prime is 131254499. The reversal of 131254477 is 774452131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108701476 + 22553001 = 10426^2 + 4749^2 .

It is an emirp because it is prime and its reverse (774452131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131254477 - 2¹⁹ = 130730189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131254427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65627238 + 65627239.

It is an arithmetic number, because the mean of its divisors is an integer number (65627239).

Almost surely, 2^131254477 is an apocalyptic number.

It is an amenable number.

131254477 is a deficient number, since it is larger than the sum of its proper divisors (1).

131254477 is an equidigital number, since it uses as much as digits as its factorization.

131254477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 34.

The square root of 131254477 is about 11456.6346280223. The cubic root of 131254477 is about 508.2039566357.

The spelling of 131254477 in words is "one hundred thirty-one million, two hundred fifty-four thousand, four hundred seventy-seven".